[LLVMdev] Values have no names when generating *.ll files in clang and llvm 2.8 ?

Xinfinity xinfinity_a at yahoo.com
Wed Oct 13 04:29:29 PDT 2010


Hello,

I upgraded to llvm 2.8 and when I generate *.ll files from C/C++ with
clang -S -emit-llvm I obtain a *.ll file in which instructions and
basicblocks have no names.
I tried as well compiling with the -g option, but no names were given.

In the release notes it is indicated to use "--show-annotations"  to print
the number of uses. Is there something similar for assigning names to
values, as in the previous llvm versions?

 I prefer the version from llvm 2.7 :
do.cond24:                                        ; preds = %if.end
  %tmp25 = load i32* %i                           ; <i32> [#uses=1]
  %cmp26 = icmp ult i32 %tmp25, 20                ; <i1> [#uses=1]
  br i1 %cmp26, label %land.lhs.true, label %land.end

than llvm 2.8 :

; <label>:9                                       ; preds = %56, %0
  %10 = load i32* %k, align 4
  %11 = icmp ult i32 %10, 5
  br i1 %11, label %12, label %57


Thank you,
Alexandra

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